It will be recalled, by readers who follow world news, that the President of Iran has on many occasions unambiguously declared both the desire to annihilate Israel, and the expectation that Israel will soon be annihilated. It will also be recalled, that on the balance of evidence, the Iranian state has been working assiduously to acquire the means for this act of genocide. It is in direct defiance of U.N. resolutions to stop enriching uranium, and playing Saddam-like games with U.N. inspectors.
If a man were threatening to kill you, and declaring that you will soon be dead, while reaching for a gun, I think most readers would allow you were within your rights to kick that gun out of his reach.
The Iranian state is officially represented not only by President Ahmadinejad, but also in similar statements made by other leading ayatollahs, promising the utter annihilation of Israel. Iran openly arms and funds Hezbollah and Hamas, which likewise publicly promise to annihilate Israel.